Police arrested three Nigerian nationals in Thessaloniki yesterday who were accused of fraud after they tried passing off to a used-car dealer pieces of green paper they claimed to be euro notes that had been dyed with paint. The men said that the cash had been painted in order for them to be able to smuggle it out of Nigeria but that it could be cleaned with a special liquid. In order to be more convincing they proceeded to wash a few genuine 100 euros notes that had been dyed green. The suspects then offered to buy a vehicle for 3 million euros of the green money but charged the car dealer 170,000 euros for the special cleansing fluid. The victim, however, notified police who arrested the men when they returned to collect the final 70,000-euro payment and drop off the «magic» liquid.